6149221789 has 2 divisors, whose sum is σ = 6149221790. Its totient is φ = 6149221788.

The previous prime is 6149221753. The next prime is 6149221823. The reversal of 6149221789 is 9871229416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3498722500 + 2650499289 = 59150^2 + 51483^2 .

It is a cyclic number.

It is not a de Polignac number, because 6149221789 - 2¹³ = 6149213597 is a prime.

It is a super-2 number, since 2×6149221789² = 75625857220624721042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6149221289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3074610894 + 3074610895.

It is an arithmetic number, because the mean of its divisors is an integer number (3074610895).

Almost surely, 2^6149221789 is an apocalyptic number.

It is an amenable number.

6149221789 is a deficient number, since it is larger than the sum of its proper divisors (1).

6149221789 is an equidigital number, since it uses as much as digits as its factorization.

6149221789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 49.

The square root of 6149221789 is about 78416.9738577051. The cubic root of 6149221789 is about 1832.0615175666.

The spelling of 6149221789 in words is "six billion, one hundred forty-nine million, two hundred twenty-one thousand, seven hundred eighty-nine".